NCT03794583

Brief Summary

This open-label study will evaluate the safety of continued therapy with inhaled treprostinil in participants who have completed Study RIN-PH-304 (NCT03496623). This study hypothesizes that long-term safety findings will be similar to those observed in the randomized, placebo-controlled, double-blind, adaptive study 'A Phase 3, Randomized, Placebo-controlled, Double-blind, Adaptive Study to Evaluate the Safety and Efficacy of Inhaled Treprostinil in Patients with Pulmonary Hypertension due to Chronic Obstructive Pulmonary Disease (PH-COPD)(RIN-PH-304).

Trial Health

60
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
41

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Dec 2018

Typical duration for phase_3

Geographic Reach
3 countries

31 active sites

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 21, 2018

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

January 2, 2019

Completed
5 days until next milestone

First Posted

Study publicly available on registry

January 7, 2019

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 29, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 29, 2022

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

December 18, 2023

Completed
Last Updated

December 11, 2025

Status Verified

November 1, 2025

Enrollment Period

3.9 years

First QC Date

January 2, 2019

Results QC Date

November 27, 2023

Last Update Submit

November 24, 2025

Conditions

Keywords

TreprostinilLung DiseasesHypertensionVascular Diseases

Outcome Measures

Primary Outcomes (1)

  • Number of Participants With Treatment-Emergent Adverse Events (TEAEs)

    An adverse event (AE) can be any unfavorable or unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the medicinal (investigational) product. Treatment-emergent was defined as any AE occurring/worsening at any time after a participant was exposed to study drug up until 7 days after the last dose of study drug. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.

    Up to 4 years

Secondary Outcomes (3)

  • Change From Baseline to Week 6 in 6-Minute Walk Distance (6MWD)

    Baseline, Week 6

  • Change From Baseline to Week 6 in Borg Dyspnea Score

    Baseline, Week 6

  • Change From Baseline to Week 6 in N-terminal Pro-brain Natriuretic Peptide (NT-proBNP)

    Baseline, Week 6

Study Arms (1)

Inhaled Treprostinil Solution

EXPERIMENTAL

Inhaled treprostinil solution (0.6 milligrams per milliliter \[mg/mL\], 6 mcg/breath) QID during waking hours.

Drug: Inhaled treprostinil solution

Interventions

Inhaled treprostinil solution per dose and schedule specified in the arm

Inhaled Treprostinil Solution

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participant voluntarily gives informed consent to participate in the study.
  • Participant completed Study RIN-PH-304.
  • Women of childbearing potential (defined as less than 1 year post-menopausal and not surgically sterile) must agree to practice abstinence or use 2 highly effective methods of contraception (defined as a method of birth control that results in a low failure rate, \[less than 1% per year\], such as approved hormonal contraceptives, barrier methods \[such as condom or diaphragm\] used with a spermicide, or an intrauterine device) for the duration of study treatment and for 48 hours after discontinuing study drug.
  • Males with a partner of childbearing potential must agree to use a barrier method (condom) with a spermicide for the duration of treatment and for at least 48 hours after discontinuing study drug.

You may not qualify if:

  • The participant is pregnant or lactating.
  • The participant was prematurely discontinued from Study RIN-PH-304.
  • The participant is intolerant to inhaled prostanoid therapy.
  • The participant is unwilling or unable to use Sponsor-provided devices (actigraph, spirometer, or smart device).
  • The participant is scheduled to receive another investigational drug, device, or therapy during the course of this study.
  • Any other clinically significant illness or abnormal laboratory value(s) that, in the opinion of the Investigator, might adversely affect the interpretation of the study data.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (31)

The University of Alabama at Birmingham

Birmingham, Alabama, 35294, United States

Location

University of California Davis Medical Center

Sacramento, California, 95817, United States

Location

St. Francis Sleep Allergy & Lung Institute

Clearwater, Florida, 33765, United States

Location

St. Vincent's Lung, Sleep, and Criticial Care Specialists

Jacksonville, Florida, 32204, United States

Location

Mayo Clinic - Jacksonville

Jacksonville, Florida, 32224, United States

Location

University of Miami Hospital

Miami, Florida, 33136, United States

Location

Pulmonary & Critical Care of Atlanta

Atlanta, Georgia, 30342, United States

Location

Georgia Clinical Research

Austell, Georgia, 30106, United States

Location

University of Illinois Medical Center

Chicago, Illinois, 60612, United States

Location

St. Vincent Medical Group, Inc.

Indianapolis, Indiana, 46260, United States

Location

Kentuckiana Pulmonary Associates

Louisville, Kentucky, 40202, United States

Location

University of Maryland Medical Center

Baltimore, Maryland, 21201, United States

Location

Brigham and Women's Hospital

Boston, Massachusetts, 02115, United States

Location

Spectrum Health

Grand Rapids, Michigan, 49546, United States

Location

Albany Medical Center

Albany, New York, 12208, United States

Location

Mount Sinai Medical Center

New York, New York, 10029, United States

Location

University of Rochester Medical Center

Rochester, New York, 14623, United States

Location

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, 27599, United States

Location

The Carl and Edyth Lindner Research Center at The Christ Hospital

Cincinnati, Ohio, 45219, United States

Location

Cleveland Clinic

Cleveland, Ohio, 44195, United States

Location

Allegheny General Hospital

Pittsburgh, Pennsylvania, 15212, United States

Location

University of Pittsburgh Medical Center

Pittsburgh, Pennsylvania, 15213, United States

Location

Medical University of South Carolina

Charleston, South Carolina, 29425, United States

Location

Inova Fairfax Hospital

Falls Church, Virginia, 22042, United States

Location

Pulmonary Associates of Richmond, Inc.

Richmond, Virginia, 23230, United States

Location

Carilion Clinic

Roanoke, Virginia, 24014, United States

Location

University of Wisconsin School of Medicine and Public Health

Madison, Wisconsin, 53792, United States

Location

Lady Davis Carmel Medical Centre

Haifa, 34362, Israel

Location

Hadassah-Hebrew University Hospital

Jerusalem, 9112001, Israel

Location

Rabin Medical Center

Petah Tiva, 49100, Israel

Location

"Azienda Unita Sanitaria Locale Della Romagna Ospedale ""Gian Battista Morgagni"" - Luigi Pierantoni"" di Forli"

Forlì, Forli, 47121, Italy

Location

MeSH Terms

Conditions

Hypertension, PulmonaryPulmonary Disease, Chronic ObstructiveLung DiseasesHypertensionVascular Diseases

Condition Hierarchy (Ancestors)

Respiratory Tract DiseasesCardiovascular DiseasesLung Diseases, ObstructiveChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Limitations and Caveats

Per sponsor decision, the study was terminated early.

Results Point of Contact

Title
United Therapeutics Global Medical Information
Organization
United Therapeutics

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: This trial is not blinded. All participants will begin titration of study drug once all entry criteria have been met.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 2, 2019

First Posted

January 7, 2019

Study Start

December 21, 2018

Primary Completion

November 29, 2022

Study Completion

November 29, 2022

Last Updated

December 11, 2025

Results First Posted

December 18, 2023

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will not share

Locations